如何实现在线答题中的答题结果分享和分析功能

# 导入必要的模块
import pandas as pd

# 定义一个答题结果类
class AnswerResult:
    def __init__(self, question, answer):
        self.question = question
        self.answer = answer

# 定义一个学生类
class Student:
    def __init__(self, name):
        self.name = name
        self.answer_results = []

    def add_answer_result(self, answer_result):
        self.answer_results.append(answer_result)

# 创建题目和学生
questions = ["1 + 1 =", "2 * 3 =", "5 - 3 ="]
students = [Student("张三"), Student("李四"), Student("王五")]

# 假设学生的答题结果为
answers = {
    "张三": [AnswerResult(questions[0], "2"),
           AnswerResult(questions[1], "5"),
           AnswerResult(questions[2], "2")],
    "李四": [AnswerResult(questions[0], "3"),
           AnswerResult(questions[1], "6"),
           AnswerResult(questions[2], "2")],
    "王五": [AnswerResult(questions[0], "2"),
           AnswerResult(questions[1], "6"),
           AnswerResult(questions[2], "2")]
}

# 学生答题结果保存
for student in students:
    student.add_answer_result(answers[student.name])

# 答题结果分享
for student in students:
    print(f"{student.name}的答题结果：")
    for answer_result in student.answer_results:
        print(answer_result.question, answer_result.answer)

# 答题结果分析
df = pd.DataFrame(columns=["问题", "正确答案", "学生", "答案"])
for student in students:
    for answer_result in student.answer_results:
        df = df.append({"问题": answer_result.question,
                        "正确答案": "2" if "2" in answer_result.question else "其他",
                        "学生": student.name,
                        "答案": answer_result.answer}, ignore_index=True)

# 统计每道题的正确率
correct_rate = {}
for question in questions:
    count = df[df["问题"] == question]["答案"].count()
    correct_count = df[(df["问题"] == question) & (df["答案"] == df["正确答案"])]["答案"].count()
    correct_rate[question] = correct_count / count

print("每道题的正确率：")
for question, rate in correct_rate.items():
    print(question, rate)